Permutation double lock



July 10, 19%

J. KONKUS PERMUTATION DOUBLE LOCK Filed 0G13. l5, 1927 I v l IN1/EN TOR. ai? Kore/Q25 Patented July lil, i925?.

JGHAN KONKUS, OF FGRLS; NET! JERSEY.

PERMUTATN' DOUBLE LOCK.

Application tiled October 13. 192?.

This inrent'on relates to a permutation lock and its chie't object is to provide an itiele ot this character in which a combined door lcnob and key element inav be used to 5 throw its holts and may he with their component parts in euch specific relation that the said bolts cannot he inoved into their open'positions unless the said parts are placed in the aforesaid specific relation. o Further objects are the provision ot means 'tor the rearrangement. ot certa-in elements oit the said knoh and certain ineinhers within the lock easing'. to foi/in different coincident relations, or combinations by which the lock f may he opened.

'lhesze and other objects and features of the invention will. he tullv described in the following,r specification and illustra-ted in the acconipanvincv drawings. in which:

1 snows a vertical cross section of the lock on the line 1-1 of Fig.

Fig. 2 shows a Vfront View ot' the lrnoh illustratine the combination dials.

Fig'. 3 shows the interior oit the locl; casingv on the line of Fig'. 1; the hack plate being' removed.

leterrincY now to Fig. 1 of the drawings; the lock casing 'itl is shown secured to the door .il liv ineens: of the screws 12 and 13, other smilar sciews being placed at the corners ot the casino'. The casincr elements comprise the front plate 14` side walls 15 and lo and hach' plate 17. rlie hack plate l overlaps the casing' and naar he removed for :i5 access to the interior ot the lock. rlhe sleeve 18 passes through the woodwork ot the door as shown. An escutcheon plate 19 is' mounted concentric to the sleeve.

A key element 21 it: provided with a 4o .cenare shoulder Q2 to which irnilv affixed the dal ring` B; the tubular shank 24 of the kei' ele-nient passes through the sleeve 18 and has, near to its extremity the bit 25, which hit is thin and flat as seen in Fig. 3; its inner portion is cut away as shown at 26 troni its hase portion so as to have a horizontal portion the extension 27 of the shank passes outward through the casinc'. @ver this extension the cap 28 is semi cured b v the screw 29. A `groove 30 extends around the shank 24 and a. longitudinal lgroove 3l opens into it as shown` The cent al shaft has atHXed to its :torward end the dial plate C. This shaft passes through the tubular shank 24 and has its rear end 36 reduced in diameter and protlllf.

`the pin Sollfzl No. 225.885.

trudiug' within the cap 28. It is secured o v 37j at that portion ot t-he shaft which rests within theopen part Q6 of the hit it is nrovidrd with a serien of teeth 38, 60 tho purpose oic wh'ch will he described later.

The knol) has a dial tace and has its hase portion rotatahl)7 mounted on the shank Qel, its hacl: riin #i3 is perforated at intervals as seen at etc.. and a pin 46 is mounted in one of the .said perforations. This pin is secured hr the rnc; 47 which inay he reinoved for the purposeot changing its location, its may he seen, it engages the groove 31 and when the knob is pushed hack, is adapted to pass around the groove 30 freely.

The dials A. l and C are each ,graduated as seen at 18? 49 etc. in Fig. 2. and each has a. :series ot numerals as seen at G0. 61 etc.

Referring now more particularly to Fig'. the holts 50 and 51 are placed flatwithin the casino' and are guided at the top and the liottorn thereof bv the lues 52 etc. 'lhev are maintained in their longitudinal relation hv the connector 55 which engages the lower holt as .seen at 5.6 .it the forward and rear extremities Jthe bolts are ot a thiekness equal to the inter'or depth of the lock casino'. hut in the central portions between the dotted lines 57 and 58; and 59 and 60,v they are out awajr to M@ive clearance for the interior mechanism. The holt 50 has4 a` slot GQ which engages the hit Q5 and a slot 63 which is adapted to receive the stop latch G4. and the holt 5l has a slot G5 which is adapted to receive the stop latch GG. These .f-'toii latches are provided with end springs G7 and 68 aid are under pressure ot the .springs 69 and 70. The cross har 73 has center rinoj 74 which is notched to fit over 95 'ecth S8 ot the central shaft, A ratchet .spri 75 is secured to the hoss 76 and serves to hold the raid central shaft in the desired posit-ion liv engaging' the teeth SS, hut perinits ot its rotation when required.

In the illustrations the loclt is shown with the bolts thrown out. hut not locked. rThe release ot the latches 64 and 66 hv turning the dial C will accomplish this hy the said latches; enpgaojingr the adjacent slots in the said holt-s. This done. and the dials spun into randoni relation with each othen and the knol) 42 pushed haelt so that the nin is in the rotation groove; the loelr cannot he opened except by proper setting of the dials and rotation of the knoh as will now loe described.

Assuming the combination to be 3-6-2 reading inward from the A dial; in its locked position, the bit Q5 will be vertical and its dial ring B will, as in the illustration, have the 6 at the top. The knob will still be pushed back as it was left after locking. The knob is now rotated until its dial numeral 3 on the tace is in line with the 6 on the B dial, it may then be drawn 'forward as ythe pin 46 will now coincide with the longitudinal groove, and it is now in position to rotate the shank 24 as soon as the latches 64 and 66 are thrown out ot the bolt slots. This is done by rotating the dial C to the right until it stops against the horizontal portion '25 of the bit, it is then turned to the lett until its dial numeral 2 is in line with the 3 and 6 already set; `in this position, which is as shown in Fig. 3, the latches will be tree from the slots and the bolts may be thrown open by rotating the knob.

lVhile I have shown and described the preferred embodiment of the invention in the accon'ipanying` drawings and specilication, I do not wish to be held rigidly to the exact details olI this construction, but claim the right to such minor modifications as may come within the spirit and scope of the appended claims.

Having thus described my invention, what I claim as new and desire to secure by Iietters Patent, as follows:

1. In a lock ot the class described, a casing, slidable bolts within the said casing, latch members engageable withv the bolts a tubular shank passing Within the said casing and means thereon to actuate the said bolts, a dial element on the outer extremity of the said tubular shank, a knob rotatably mounted about the said dial element, a central shaft passing through the said tubular shank, a dial element on the said shaft, means on the said central shaft to actuate the said latches within the said casing, and suitable characters on the face ot the said dial elements.

2. In a lock ot the character described,V

the combination with a lock casing having therein slidable bolts, and latch members engaging the same, o'l` a tubular shank having a key bit thereon, a knob consisting of concentric rotatable elements,I and a central shaft passing through the said shank and having thereon a dial element adapted to co-act with the said rotatable elements and having mounted thereon, at a point within the said lock casing, atransverse element which is adapted to engage the aforesaid latch members when all ot the rotatable elements are in a certain specific relation to each other and to move the said latch members into inoperative positions.

3. In a lock of the character described, the combination with a lock casing having therein slidable boltsI and latch members en gageable therewith`v of a tubular shank entering the said casing and provided with a key bit on that portion within the said casing and with a knob at its extrenlity, which knob comprises a plurality ot dial elements having thereon suitable markings, the outer dial element extending back over and bearing upon the said shank and having a pin member in engagement with a groove .in the said shank, which groove extends longitudinally thereto and communicates with a second groove running around the circumtei-- ence ot the said shank, and a central shalft having a dial element concentric to those Vtirst described and the said shaft passing through the said tubular shank and having at a point adjacent to the key bit, a transverse member, which member, upon rotation is adapted to engage the latch members which act upon the said slidable bolts.

In testimony whereof I have affixed my signature.

JOHAN KONKUS. 

